Phares s



(No Model.)

P. s. MYERS DOUBLE ROOF SEAMING TOOL.

Patented Feb. 11,1890.

lA/l/ IVTOR By Af/vmey UNITED STATES arnwr ()FFICE.

PHARES S. MYERS, OF READING, PENNSYLVANIA, ASSIGNOR OF PART TO NATHANIEL E. I-IOMAN, GEORGE M. FASIG, AND EPHRAIM B. BARR, ALL

OF SAME PLACE.

DOUBLE-ROOF-SEAMING TOOL.'

SPECIFICATION forming part of Letters Patent No. 421,187, dated February 11, 1890.

Application filed June 8, 1889.

To aZZ whom it may concern;

Be it known that I, PHARns S. MYERS, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Double-Roof-Seaming Tools; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which. it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon which form a part of this specification. I

This invention relates to that class of seaming-tools which is adapted for tin-roofing; and the main object is to provide a single tool by means of. which a double lockseam may be made without requiring the use of removable parts.

My improved tool is fully set forth herein, and the novel features are specifically brought out in the claims.

Figure 1 is a full elevation of my improved tool, showing the position of the jaws in making the second bend for the double seam. Fig. 2 shows the position of the jaws in making the first bend. Fig. 3 shows the first seam after clinching. Fig. t shows the complete double seam.

The jaws A and B are pivoted together at K, and are opened and closed by means of handles II and J. A top lip a projects from the face of jaw A at about right angles to it, and when the jaws are closed loosely enters a corresponding recess Z) in the face of jaw 13. The overhanging lip c of jaw B, which forms the roof of the recess, projects over the top of the jaw A beyond the face of the latter when the jaws are closed, as shown in Fig. 1.

To the outside face of jaw 13 is hinged at e the clinching-bar D, which is provided with a lug d, upon. the upper face of which rides a roller g, which is journaled intermediately to a foot lever E, hin ed to the jaw B above the lip c. A spring Sr connects the Serial No. 313,564. (No model.)

bar D with lever E, and both are normally raised, as indicated in Fig. 1, by means of a spring F.

The operation is as follows: The upturned edges of adjacent sheets wand y are spanned by the jaws of the tool, which are opened wide to admit the taller strip to pass the outer edge of the overhanging lip 0 when the base of jawB rests upon the flat sheet 00. As the jaws are closed the overhanging lip c bends the taller strip over the top of jaw A and the other strip, as indicated in Fig. 2, and the first seam or lock, as shown in Fig. 3, is completed by means of the clinchingbar D, which is operated by the treadle E, the roller 9 riding upon the lug (Z as the bar is closed against the jaw B. The second bend is made, as indicated in Fig. 1, by the lip a bending the single seam over into the recess 5 until. the two upturned edges of the sheets are pinched together by the jaws A B, and the double lock is finished by repeating the operation of the clinchingbar I), as already described.

Heretofore the double seam described has been made by the use of two similar tools having different height of jaws, and also by. tools having removable pieces by which to change the height of the bending-lip from the base of the jaws. My improved construction permits both bends to be made with a single tool without change or addition, thus avoiding both the duplication of tools and the inconvenience of changing.

Vthat I claim is- 1. A roof seaming tool consisting of pivoted jaws A and B, with operating-handles, the jaw B having a recess 1), extending inwardly from the clampingface, and an overhanging lip 0, extending beyond said clamp ing-face, and the jaw A having a lip a projecting from its clamping-face and adapted to enter said recess, whereby a standing seam 9o may be bent consecutively in opposite directions, all arranged to operate substantially as set forth.

2. In a roofseaming tool, the combination of pivoted jaws A and B, having operating-le- In testimony whereof I affix my signature in Vers H and J with bar D and lever E, sepa presence of two Witnesses. rately hinged to said jaw B, substantially as described, said lever E being connected with PI-IARES S. MYERS. 5 bar D by a spring 0 and with the o'perating- WVitnesses:

lever J by a spring F, all substantially as set GEO. D. STITZEL,

forth. F. PIERCE HUM EL. 

